Thanks for the Video.
Let's put this to sleep on this statement:
It is A WAY to get someone who is under-plane, not to be under-plane.
I can fix 'em without all the reverse feel. Is my way better? I think so, but the proof is in the pudding, and they have had some successes and some failures, and I have as well. The trick is LEARNING from the failures and UPGRADING at all times. I am VERY SURE the more research they do, the more they will change.
I'd gladly line up on the tee with them or anyone teaching this stuff, and fix one good player, one single-digit, one double digit and one beginner/hacker each, and have it judged by an un-biased panel or the "Trackman."
I have fixed two VERY GOOD PLAYERS recently—I am talking Tour caliber guys, without any of the left lean business.
BTW, they had both worked with Mac, and some with his "guys."